Hi @r-goswami, Good Day! 

I apologise. Can you try to create a new job using the rest API: https://docs.databricks.com/api/workspace/jobs/create

This could be a potential bug in Databricks workflow UI. Did you get a chance to check the issue in your other workspaces? 

Please let me know if this helps and leave a like if this information is useful, followups are appreciated.
Kudos
Ayushi